Uncle: the brother of your father or mother; the husband of your aunt.

Aunt: the sister of your father or mother; the wife of your uncle.

Cousin (also first cousin) : the child of your uncle or aunt; more generally, a distant relation.

First cousin once removed: the child of your first cousin; your parent’s first cousin. Basically, there is a generation between you and your ‘first cousin once removed’, i.e. you are separated by your first cousin, hence the concept of ‘once removed’ (see analysis here)

Second cousin: the child of your first cousin once removed; the child of your parent’s first cousin.

Nephew: the son of your brother or sister; the son of your wife or husband’s brother or sister (brother-in-law or sister-in-law).

Niece: your brother or sister’s daughter; the daughter of your wife or husband’s brother or sister (brother-in-law or sister-in-law).

Thank you. First cousin once removed is the child of your first cousin.’Removed’ simply means that one generation is removed or that you are separated by one generation (your first cousin). Do you understand, ma?